Hiflofiltro air filters are manufactured to fit the factory air box and are a direct replacement for original equipment filters.
Fits:
BMW F650 CS (K14 / E650C) 2002 to 2005,
BMW G650 Xchallenge 2007 to 2008,
BMW G650 Xcountry 2007 to 2008,
BMW G650 Xmoto 2007 to 2008